软破岩质高陡边坡治理方案优化研究  

Optimization of treatment scheme for high and steep slope with soft broken rock

作　　者：王旭 杨志一 马增 徐志强 张忠光 WANG Xu;YANG Zhiyi;MA Zeng;XU Zhiqiang;ZHANG Zhongguang(Changsha Institute of Mining Research Co.,Ltd.,Changsha 410012,China;State Key Laboratory of Safety Technology of Metal Mines,Changsha 410012,China;China Railway 19th Bureau Group Mining Investment Co.,Ltd.,Chifeng Inner Mongolia 100105,China;Hunchun Zijin Mining Co.,Ltd.,Hunchun Jilin 133300,China)

机构地区：[1]长沙矿山研究院有限责任公司,长沙410012 [2]金属矿山安全技术国家重点实验室,长沙410012 [3]中铁十九局集团矿业投资有限公司,内蒙古赤峰100105 [4]珲春紫金矿业有限公司,吉林珲春133300

出　　处：《有色金属（矿山部分）》2024年第2期102-107,119,共7页NONFERROUS METALS(Mining Section）

摘　　要：受不良工程地质条件、下部采矿活动及雨雪入渗等影响,曙光金铜矿露天边坡存在较为明显的蠕滑现象,导致多处台阶出现严重变形、开裂、下沉。通过边坡灾害体分析、边坡稳定性计算,并结合矿山实际情况,提出了5种边坡治理方案,分别为:(1)预应力长锚索+钢板方案;(2)喷锚网方案;(3)浆砌石挡墙+素喷方案;(4)预注浆固结方案;(5)微型桩+浆砌石挡墙方案。经多角度方案对比,最终选取了方案(1)与方案(5)相结合的综合治理方案。通过方案实施,取得了良好的边坡治理效果,保障了矿山安全生产,该矿山边坡治理的研究与分析可为类似条件软破岩质高陡边坡治理提供可借鉴的经验和依据。Affected by unfavorable engineering geological conditions,underground mining activities and rain and snow infiltration,there is an obvious creep phenomenon in the open-pit slope of Shuguang Gold and Copper Mine,which leads to serious deformation,cracking,and subsidence of many steps.Based on the analysis of the slope disaster body and the calculation of slope stability,combined with the actual situation of the mine,five slope treatment schemes are put forward,namely:①Prestressed long anchor cable+steel plate scheme;②Spray anchor net scheme;③Masonry retaining wall+plain spraying scheme;④Pre-grouting consolidation scheme;⑤Micro-pile+masonry retaining wall scheme.After comparing the schemes from different angles,the comprehensive treatment scheme combining scheme①with scheme⑤was finally selected.Through the implementation of the scheme,good slope treatment effect has been achieved,which ensures the safe production of the mine.The research and analysis of slope treatment in this mine can provide reference experience and a basis for the treatment of soft rock high and steep slopes under similar conditions.

关 键 词：边坡 安全系数 锚索 微型桩 挡墙 滑坡 

分 类 号：TD854.6[矿业工程—金属矿开采]